Cognomen גאגא (Gaga 
, גאגא) , all around the world, is a common family name. The last name גאגא is habitual in Georgia, where it is quite a common surname, Serbia, where it is quite a rare surname, and Taiwan. Not in comparison with a country's population, it is the most numerous in India, Georgia, and Indonesia. Also, גאגא is the forename as well as the last name.